Bernina 750 QE Owner's Manual
BERNINA 750 QE
Introduction
034247.71.04_2014-02_Manual_B750_EN
Dear BERNINA Customer
Congratulations! You have decided on BERNINA and therefore on a product which will
delight you for years. For more than 100 years our family company has attached
greatest importance to satisfied customers. As for me, it is a matter of personal concern
to offer you Swiss development and precision at the height of perfection, futureorientated sewing technology and a comprehensive customer service.
The BERNINA 7-series consists of three ultramodern sewing-/embroidery computers,
whose development not only focused the highest demands on technique and the ease
of use but also considered the design of the product. After all we sell our products to
creative people like you, who do not only appreciate high quality but also form and
design.
Enjoy the creative sewing, quilting and embroidering on your new BERNINA 750 QE
and keep informed about the various accessories at www.bernina.com. On our
homepage you will also find a lot of inspiring sewing instructions, to be downloaded for
free.
Our highly trained BERNINA dealers will provide you with more information on service
and maintenance offers.
I wish you lots of pleasure and many creative hours with your new BERNINA.
H.P. Ueltschi
Owner
BERNINA International AG
CH-8266 Steckborn
www.bernina.com
2. Edition
1
Safety Instructions
034247.71.04_2014-02_Manual_B750_EN
SAFETY INSTRUCTIONS
IMPORTANT
INFORMATION
When using an electrical appliance, basic safety
precautions should always be followed, including
the following:
Read all the instructions before using this
sewing-/embroidery computer.
When the sewing-/embroidery computer is not
in use, it should be disconnected from the
electricity supply by removing the plug from
the outlet.
DANGER!
To reduce the risk of electrical shock:
1. The sewing-/embroidery computer should
never be left unattended when plugged in.
2. Always unplug this sewing-/embroidery
computer from the electrical outlet
immediately after using and before cleaning.
3. LED Radiation – Do not view directly with
optical instruments. Class 1M LED product.
WARNING!
To reduce the risk of burns, fire, electric shock or
injury to persons:
1. Use this sewing-/embroidery computer only
for purposes as described in this manual. Use
only attachments, accessories and parts
recommended by the manufacturer.
2. Do not allow this sewing-/embroidery
computer to be used as a toy. Close attention
is necessary when this sewing-/embroidery
computer is used by or near children and
infirm persons. The sewing-/embroidery
computer is not intended for use by persons
(including children) with reduced physical,
sensory or mental capabilities or lack of
experience and knowledge, unless they have
been given supervision or instruction
concerning use of the sewing-/embroidery
computer by a person responsible for their
safety. To ensure children do not play with
2
the sewing-/embroidery computer they must
be supervised.
3. Never operate this sewing-/embroidery
computer if:
⦁
it has a damaged cord or plug
⦁
it is not working properly
⦁
it has been dropped or damaged
⦁
it has fallen into water
Return the sewing-/embroidery computer to
your local authorized BERNINA dealer for
examination or repair.
4. Never operate the sewing-/embroidery
computer with any air openings blocked.
Keep ventilation openings of the sewing-/
embroidery computer free from the
accumulation of lint, dust and loose cloth.
5. Keep fingers away from all moving parts.
Special care is required around the sewing
needle.
6. Never insert any objects into any openings on
the sewing-/embroidery computer.
7. Do not use the sewing-/embroidery computer
outdoors.
8. Do not operate the sewing-/embroidery
computer where aerosol products (sprays) or
oxygen are being used or where oxygen is
being administered.
9. Do not pull or push the fabric while stitching.
This may deflect the needle, causing it to
break.
10. Do not use bent needles.
11. Always use the original BERNINA stitch plate.
The wrong stitch plate can cause needle
breakage.
12. To disconnect, turn power switch to «0» (off),
then remove the plug from the outlet. Do not
unplug by pulling the cord, instead grasp the
plug to pull it from the outlet.
13. Turn power switch to «0» (off) when making
any adjustments in the needle area, such as
changing the needle or the presser foot, etc.
14. Always unplug the sewing-/embroidery
computer from the electrical outlet when
carrying out cleaning or maintenance work or
any other user servicing adjustments
mentioned in this manual.
15. This sewing-/embroidery computer is provided
with double insulation (except USA and
Canada). Use only identical replacement
parts. See instructions for servicing of doubleinsulated products.
Safety Instructions
034247.71.04_2014-02_Manual_B750_EN
SERVICING DOUBLEINSULATED PRODUCTS
In a double-insulated product two systems of
insulation are provided instead of grounding. No
grounding means is provided on a doubleinsulated product, nor should a means for
grounding be added to the product. Servicing a
double-insulated product requires extreme care
and knowledge of the system and should be done
only by qualified service personnel. Replacement
parts for a double-insulated product must be
identical to the original parts in the product. A
double-insulated product is marked with the
words: «DOUBLE INSULATION» or «DOUBLE
INSULATED».
The symbol
product.
may also be marked on the
DISCLAIMER
No liability will be assumed for any possible
damage which arises from misuse of this sewing-/
embroidery computer.
This sewing-/embroidery computer is intended for
household use only.
This sewing-/embroidery computer meets the
European Standard 2004/108/EC concerning the
electromagnetic tolerance.
Environmental Protection
BERNINA is committed to the protection
of the environment. We strive to
minimize the environmental impact of
our products by continuously improving
product design and our technology of
manufacturing.
When your sewing computer won't be
used anymore, dispose this product in
an environmentally responsible way
according to the national directive. Do
not throw away this product with your
household waste. In case of doubt,
please contact your BERNINA dealer.
If the sewing computer is stored in a cold
room, it should be brought to a warm
room about one hour before use.
SAVE THESE
INSTRUCTIONS!
Please find the latest version of your
instruction manual at www.bernina.com
3
Contents Sewing
034247.71.04_2014-02_Manual_B750_EN
Contents Sewing
Safety Instructions 2
Environmental Protection 3
Key to Signs 8
Glossary 8
Accessory 9
Standard Accessories 9
Presser feet 10
Accessory box free standing 11
Bobbin 11
Overview sewing computer 12
Front view 12
Detail view 12
Important sewing information 14
Thread 14
Needle, thread and fabric 14
Needles, threads 15
⦁
Correct needle/Thread combination 15
⦁
Too thin thread or too thick needle 15
⦁
Too thick thread or too fine needle 15
Overview needles 16
Sewing preparation 18
Power Switch/Power Cable 18
Foot control 18
Slide-on table 18
Presser foot lifter 19
Vertical spool pin 19
Winding a bobbin 20
⦁
Bobbin winding while sewing 20
Inserting a bobbin/Threading lower thread 21
Removing/inserting bobbin case 21
⦁
Removing the bobbin from the bobbin case 21
Threading the upper thread 22
Changing the needle 22
Threading the double needle 23
Threading the triple needle 23
Thread needle 24
Changing the presser foot 24
Stitch plate 25
⦁
Markings on the stitch plate 25
⦁
Removing the stitch plate 25
⦁
Replacing the stitch plate 25
Thread tension 26
⦁
Altering the upper thread tension 26
⦁
Saving the upper thread tension 26
⦁
Reset settings 26
Altering presser foot pressure 27
⦁
When sewing thick material, e.g. quilting 27
⦁
Saving presser foot pressure 27
⦁
Reset settings 27
Feed Dog lowered/ready to sew 28
Feed Dog and Fabric Feed 28
Functions 30
Overview «Function»-buttons sewing 30
⦁
«Start/Stop»-button 30
⦁
«Presser foot position»-button 30
⦁
Automatic thread cutter 30
⦁
«Quick reverse»-button 30
⦁
«Needle stop»-button 30
⦁
Programmable «Pattern end/Securing»-button 30
⦁
Speed control 30
⦁
Stitch width and Stitch length Knobs (Multifunction) 31
⦁
«Needle position»-buttons 31
Display 32
Overview Main Display 32
⦁
System settings 32
⦁
Menu Selection 32
⦁
Selection 33
⦁
Stitch Pattern selection 33
⦁
Stitch Pattern Display 33
Functions - Display 34
Overview Sewing functions 34
General functions 34
Overview Functions buttonholes 36
Overview Functions Alphabets 38
Overview Functions Combi mode 40
Setup Program 44
Overview «Setup»-display 44
Changing Display settings 45
⦁
Brightness 45
⦁
Sewing light 45
⦁
Brightness sewing light 45
⦁
Welcome text 45
⦁
Deleting Welcome text 45
⦁
Corrections 45
Selecting the Display color 46
Sewing settings 46
⦁
Sewing speed 46
⦁
Altering the upper thread tension 46
⦁
Securing stitches at pattern begin 46
⦁
Automatic securing program at pattern end 47
⦁
Automatic thread cutter 47
⦁
Raising the presser foot 47
⦁
Automatic thread cutter and securing stitches 47
⦁
Presser foot position when needle stop down 47
⦁
Presser foot in hover position 47
⦁
Reset settings 47
Adjusting embroidery settings 48
⦁
Calibrating the hoop 48
Display Calibration 49
Altering the acoustic signals 49
Monitoring 50
Altering the winding speed 50
4
Contents Sewing
034247.71.04_2014-02_Manual_B750_EN
Update 51
Calibrating buttonhole foot No. 3A/Cleaning/
Packing position 51
Reset/Delete user data 52
⦁
Reset settings 52
⦁
Delete user data 52
Information 53
⦁
Language 53
⦁
Version 53
⦁
Dealer details 54
⦁
Service data 54
Tutorial 55
Overview Tutorial 55
Creative consultant 57
Overview Creative consultant 57
Overview Sewing techniques 57
Leaving the sewing consultant 57
Help program 58
⦁
Stitch patterns 58
⦁
Functions 58
Balance 59
Practical and decorative stitches 59
⦁
Corrections 59
⦁
Reset settings 59
eco description 60
⦁
Activating eco 60
⦁
Deactivating eco 60
Practical stitches 62
Overview Practical stitches 62
Stitch pattern selection 64
⦁
Selecting stitch pattern 64
⦁
By stitch number 64
⦁
Cancelling 64
Customizing stitch pattern individually 65
Temporary Altered Stitch Memory 65
Personal memory permanent 66
Altering stitch width and stitch length 67
Examples of application
Practical stitches 68
Straight stitch 68
Triple straight stitch 68
Triple Zig-Zag 69
Zipper 70
Manual darning 71
Automatic darning 72
Reinforced darning, automatic 73
Finishing edges 73
Double overlock 74
Top stitching edges 75
Blind hem 76
Visible hem 76
Securing program 77
Basting stitch 77
Flat joining seam 78
Height compensation of uneven layers 79
Sewing corners 79
Buttonholes 80
Overview Buttonholes 80
Important information 81
⦁
Marking the length of manual buttonholes 81
⦁
Marking the length of automatic buttonholes 81
⦁
Marking the length of keyhole buttonholes 81
⦁
Test sewing 81
⦁
To adjust the bead width 81
⦁
To adjust stitch length 81
Stabilizer 82
Cords 83
⦁
Ideal cords 83
⦁
Cord with the automatic buttonhole foot No. 3A 83
⦁
Cord with the buttonhole foot No. 3C
(optional accessory) 83
⦁
Fixing the cord 83
⦁
Cutting buttonholes open with the seam ripper 83
⦁
Cutting open buttonholes with the buttonhole
cutter (optional accessory) 83
Altering the balance 84
⦁
Balance with direct entry length buttonholes 84
⦁
Balance with direct entry length keyhole or round
buttonholes 84
⦁
Balance for manual keyhole or round buttonhole 84
⦁
Balance for manual standard buttonhole 84
⦁
Balance for stitch counter buttonhole 84
⦁
Clear balance 84
Programming Buttonholes 85
Standard and stretch buttonhole with auto-length,
automatically 85
Automatic with direct legth entry 86
Automatic with button measuring 86
Automatic round and keyhole buttonhole 87
Decorative buttonhole with double
pointed bartack 88
Heirloom Buttonhole 89
Stitch counter buttonhole 89
Buttonhole in long term memory 90
7- or 5-step-buttonhole, manually 92
Button sew-on program 93
Eyelet program 94
5
Contents Sewing
034247.71.04_2014-02_Manual_B750_EN
Decorative stitches 95
Overview Decorative stitches 95
Application 95
Examples of application
Decorative stitches 96
Cross Stitches 96
Pintucks 97
Bobbin-Play sewing 98
Quilt stitches 99
Overview Quilt stitches 99
Examples of application Quilt stitches 100
Handlook quilt stitch 100
For free-motion quilting 101
BSR (BERNINA Stitch Regulator) 102
Quilting with BSR 102
⦁
BSR-Function 102
⦁
BSR function with straight stitch No. 1 102
⦁
BSR function with zig-zag No. 2 102
⦁
Two different BSR modes 102
⦁
Preparation 103
⦁
Remove presser foot sole 103
⦁
Attaching the presser foot sole 103
Functions in the BSR mode 104
⦁
Needle stop down (standard) 104
⦁
Needle stop up 104
⦁
Raise or lower the needle 104
⦁
Securing with the «Start/Stop»-button
(only Mode 1) 104
⦁
Securing function (only Mode 2) 104
⦁
Free motion quilting (only Mode 2) 104
⦁
Free motion quilting without BSR activation 104
⦁
Beeper (audio signal) activation/deactivation 105
⦁
Selecting sound for BSR in the Setup Program 105
⦁
Selecting sound for BSR in the «BSR»-display 105
⦁
Activating the BSR Sewing Function 106
⦁
Deactivating the BSR Sewing Function by
using the «Start/Stop»-button 106
⦁
BSR Function deactivation 106
Alphabet in combination with functions 111
⦁
Select lower case 111
⦁
Change size 111
Personal program 112
Creating a Personal Display 112
Preparing stitch patterns 112
⦁
Programming/Saving first stitch pattern 112
⦁
Programming/Saving second stitch pattern 113
⦁
Stitch pattern selection in the Personal program 113
⦁
«Personal»-display 113
Alterting/Overwriting stitch patterns 114
Deleting stitch patterns 115
Combi mode 116
Creating stitch combinations 116
⦁
Programming and saving 116
Deleting Stitch Patterns 117
Opening a saved combination 117
Correcting a stitch pattern combination 118
⦁
Inserting a stitch pattern 118
⦁
Altering stitch patterns 118
⦁
Mirroring complete combinations 119
⦁
Combination subdivider 1 119
⦁
Interrupting a combination 119
Stitch pattern combination 120
⦁
Overwriting 120
⦁
Deleting 120
Contents Embroidery 121
Cleaning 164
Troubleshooting 166
Stitch patterns 171
Index 186
BERNINA Dual Feed 107
⦁
Presser Feet Selection 107
⦁
Switching On BERNINA Dual Feed 107
⦁
Switching Off BERNINA Dual Feed 107
Fabrics 108
Alphabets 109
Overview Alphabet 109
⦁
Lettering 109
⦁
Perfect stitch formation 109
Combining lettering 110
Correcting the combination 110
6
Notes
034247.71.04_2014-02_Manual_B750_EN
Notes
7
Key to Signs
034247.71.04_2014-02_Manual_B750_EN
Key to Signs
DANGER!
Very important!
Risk of injury!
ATTENTION!
Very important!
Risk of damage!
Tips!
Glossary
BERNINA USB stick Mobile storage medium
Balance Correcting abnormalities in stitch formation due to the fabric
Fabric fold Folded edge of material
BSR BERNINA-Stitch-Regulator. Quilting with consistent stitch length within a certain speed
clr Clear. Deleting settings or data
Hook «Catches» the needle-thread loop, forming the stitch together with the lower thread
LMS Length Measuring System for buttonhole
Memory Long Term Memory
Satin stitching Dense Zig-zag
Bartack Buttonhole-bead cross-connections
All rights reserved
For technical and product improvement reasons, the sewing computer's features, parts and accessory are subject to
unannounced changes and alterations at any time. The included accessories can differ from country to country.
8
Accessory
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Standard Accessories
3
Accessory
1 Presser foot lifter
2 Foot control
3 Soft Cover With Pocket
4 Accessory Box
5 Power cable
6 Slide-on table
4
12
11
10
2
5
1
6
13
14
7 3 spool discs
8 4 bobbins (one of them in the bobbin case)
9 Height compensation tool
10 Selection of needles
11 Seam guide, right
15
12 Seam ripper
13 Screwdriver Torx, gray
16
14 Screwdriver, red
15 Angular Torx button
16 Lint brush
17
9
8
18
7
17 Lubricator
18 2 foam pads
9
Accessory
034247.71.04_2014-02_Manual_B750_EN
Presser feet
21
3
4
1 No. 1C Reverse pattern foot
2 No. 1D Reverse pattern foot
3 No. 3A Automatic buttonhole foot
with slide
4 No. 4D Zipper foot
5 No. 5 Blindstitch foot
6 No. 20C Open embroidery foot
7 No. 37D Patchwork foot
8 No. 42 BSR foot
5
6 7 8
Visit www.bernina.com for
more accessory information.
10
Accessory box free standing
034247.71.04_2014-02_Manual_B750_EN
5
6
Accessory
⦁
on the back of the box, pull both extensions out until they click into place
Lay-out
The box is equipped as standard with one large 1 and one small 2 drawer as
well as a compartment for bobbin holders 5 and presser feet 7.
⦁
to remove a bobbin, press the compartment holder 6 lightly
⦁
7
buttonhole foot with slide no. 3A can be stored in the left compartment 4
⦁
store the needle package in the special compartment 3
3
2
1
Storage example
Bobbin
4
ATTENTION!
Treat the bobbins with care. Keep the white sensor surfaces
free of scratches or stains to ensure correct.
ATTENTION!
Put the bobbins into the appropriate case of the accessory box
so that the silvery sensor surfaces are on the right side.
Otherwise the bobbin can get jammed in the case, as the two
bobbin surfaces are different in diameter.
11
Overview sewing computer
034247.71.04_2014-02_Manual_B750_EN
Overview sewing computer
Front view
17
16
13
15
14
12
11
5
10
8
6
4
2
9
7
3
18
19
45
22
21
23
24
20
Detail view
40
1
25
43
41
6
4
42
44
12
Overview sewing computer
034247.71.04_2014-02_Manual_B750_EN
17
26
27
37
34
23
24
35
36
30
38
31
28
32
33
29
39
1 Bobbin cover
2 Stitch plate
3 Attachment base for
special accessories
4 Presser foot
5 LED-sewing light
6 Needle clamp
7 «Quick reverse»-button
8 «Automatic thread cutter»-
button
9 «Presser foot up/down»-
button
10 «Start/stop»-button
11 Thread guide
12 Slide Speed Control
13 Thread take-up cover
14 «Needle stop»-button
down/up
15 Programmable «Pattern
end-/securing»-button
16 Thread take-up lever
17 Pre-tension stud
18 Display
19 «Sewing support»-buttons
⦁
«Home»-button
⦁
«Setup»-button
⦁
«Tutorial»-button
⦁
«Creative Consultant»button
⦁
«Help»-button
⦁
«eco»-button
⦁
«clr»-button
20 «Needle position»-buttons
21 Stitch length knob
22 Stitch width knob
23 Bobbin winder
24 Thread cutter on bobbin
winder
25 Free hand system
connection
26 Rear thread guide
27 Carrying handle
28 Horizontal spool pin
29 Vertical spool pin
30 Eyelet thread guide
31 Handwheel
32 Power switch On «I»/
Off «0»
33 Power plug socket
34 Magnetic holder for
touchscreen pen (optional
accessory)
35 USB-connection
36 PC-connection for
embroidery software
37 Foot control socket
38 Feed dog drop
39 Air vents
40 Needle threader
41 Feed dog
42 Cutter for lower thread
43 Headframe fixing screw
44 Thread cutter on the head
frame
45 Slide-on table socket
46 Darning hoop connection
47 Special-accessories port
48 BSR-connection
49 BERNINA Dual Feed
47
48
46
45
49
USA/Canada only: The sewing computer has a
polarized plug (one blade wider than the other). To
reduce the risk of electrical shock, this plug is
intended to fit in a polarized outlet only one way. If
the plug does not fit fully in the outlet, reverse the
plug. If it still does not fit, contact a qualified
electrician to install the proper outlet. Do not
modify the plug in any way!
13
Important sewing information
034247.71.04_2014-02_Manual_B750_EN
Important sewing information
Thread
Be sure to select the appropriate thread type and weight for the fabric. For a
perfect sewing result, thread and fabric quality play an important role. It is
recommended to use quality brands.
Cotton threads
cotton threads have the advantage of being a natural fiber and therefore
are especially suitable for sewing cotton fabrics
if cotton thread is mercerized, it has a slight sheen that is not lost with
washing
Polyester threads
polyester thread has a high tensile strength and is particularly colorfast
polyester threads are more flexible and are recommended where a strong
and elastic seam is required
Rayon threads
rayon threads are made of natural fibers and have a brilliant sheen
rayon threads are suitable for decorative stitches and achieve a more
beautiful effect
Needle, thread and fabric
ATTENTION!
Check the needle condition.
As a guide: Replace the needle before starting a new sewing
project. A defective needle does not only damage the sewing
project but also the sewing computer.
Care must be taken when choosing needle and thread.
The correct needle size depends on the selected thread and fabric. The fabric
weight and type determine the thread weight, needle size and point form.
14
Needles, threads
034247.71.04_2014-02_Manual_B750_EN
Important sewing information
Correct needle/Thread combination
When sewing, the thread should travel smoothly down the long groove on the
front of the needle.
Too thin thread or too thick needle
The thread has too much clearance in the long groove. Skipped stitches and
damage to the thread can occur.
Too thick thread or too fine needle
The thread rubs on the edges of the long groove and can get jammed. This
can cause thread breakage.
Guidelines
Material and thread Needle size
Light weight materials:
Fine thread (darning thread, embroidery thread) 70-75
Medium weight materials:
Sewing thread 80-90
Heavy weight materials:
Sewing thread (quilting thread, topstitching) 100, 110, 120
130/705 H-S/70
2
1
5
3
4
1 130 Shank length
2 705 Flat shank
3 H Needle scarf
4 S Needle point (here e.g. medium ball point)
5 70 Needle size (shank diameter)
15
Important sewing information
034247.71.04_2014-02_Manual_B750_EN
Overview needles
Universal
130/705 H/60-100
Normal point, slightly rounded
For nearly all natural and synthetic
fabrics (woven and knitted)
Jersey/Stretch
130/705 H-S, H-SES, H-SUK/70-90
Ball point
Jersey, knit and stretch material
Leather
130/705 H-LL, H-LR/90-100
With cutting point
All types of leather, synthetic leather,
plastic, sheeting
Jeans
130/705 H-J/80-110
Metafil
130/705 H-MET/75-80 or H-SUK/90-100
Large eye
Sewing with metallic threads
Cordonnet (Topstitching)
130/705 H-N/80-100
Small ball point, long eye
Topstitching with thick thread
Wing needle (Hemstitch needle)
130/705 HO/100-120
Wide needle (wing)
Hemstitching
Double wing needle
130/705 H-ZWI-HO/100
Very fine sharp point
Heavy weight fabrics such as jeans,
canvas, overalls
Microtex
130/705 H-M/60-90
Especially fine sharp point
Mircro fiber fabrics and silk
Quilting
130/705 H-Q/75-90
Fine sharp point
Straight and topstitching
Embroidery
130/705 H-SUK/70-90
For special effects with hemstitch
embroidery
Double needle
130/705 H-ZWI/70-100
Needle distance:
1.0/1.6/2.0/2.5/3.0/4.0/6.0/8.0
Visible hems in stretch fabrics, pintucks,
decorative sewing
Triple needle
130/705 H-DRI/80
Needle distance: 3.0
Visible hems in stretch fabrics;
Decorative sewing
Large eye, slight ball point
Embroidery on all natural and synthetic
fabrics
16
Notes
034247.71.04_2014-02_Manual_B750_EN
Notes
17
Sewing preparation
034247.71.04_2014-02_Manual_B750_EN
Sewing preparation
Power Switch/Power Cable
1 Power Switch
1
The sewing computer is switched on («I») and off («0») with the power switch.
2
I the sewing computer is switched on
0 the sewing computer is switched off
5
4
3
Foot control
2
3
1
4
6 5
2 Power plug socket
3 Foot control socket
4 PC-connection for embroidery software
5 USB-connection
Connecting the foot control
⦁
unwind the cable
⦁
plug the cable in the outlet 1
⦁
unwind the cable to the desired length and slip into 4 or 5
Sewing speed control
Control the sewing speed by pressing the foot control 2 more or less.
Adjust needle down or up
⦁
sink the heel back 3 on the foot control
►
the needle adjusts the position up/down
Removing the foot control
⦁
wind the cable around the reel
⦁
plug cable into 6
Slide-on table
18
USA/Canada only: Use only foot controller type LV-1 with
sewing computer B 750 QE.
The slide-on table increases sewing surface.
Attaching the slide-on table
⦁
turn the handwheel (see page 13)
►
needle is raised
⦁
press «Presser foot up/down»-button
►
presser foot is lifted
⦁
slide table to the right, over the free arm until it engages
Removing the slide-on table
⦁
raise the needle and presser foot
⦁
1
press button 1 down
⦁
pull slide-on table to the left
Presser foot lifter
034247.71.04_2014-02_Manual_B750_EN
Raising or lowering presser foot via FHS.
Attaching the Free Hand System
⦁
insert into the opening 1
Sewing preparation
Vertical spool pin
1
Raising and lowering the presser foot
⦁
with your knee push lever to the right
⦁
you should be able to operate the FHS with your knee in your normal sitting
position
►
the presser foot is raised; the feed dog is lowered simultaneously. The
thread tension is released
►
the feed dog is raised as soon as the first stitch is sewn
Your dealer can adjust the FHS if necessary.
The vertical spool pin is on the side behind the handwheel.
It is an essential aid for sewing with more than one thread, e.g. double needle
work and can also be used for winding the bobbin while sewing.
⦁
turn the spool pin 1 as far it will go
1
⦁
use foam pad 2 for stability with all thread spools
2
19
Sewing preparation
034247.71.04_2014-02_Manual_B750_EN
Winding a bobbin
⦁
turn power switch to «I» (on)
⦁
place empty bobbin on spindle 1
1
2
⦁
place foam pad on the spool pin
⦁
place thread on the spool pin
⦁
attach appropriate spool disc 2
⦁
following the direction of the arrow, take the thread through the rear guide
3
and around the pre-tension stud
⦁
wind the thread two to three times around the empty bobbin
⦁
cut off any excess thread on the thread cutter 3
Appropriate spool disc
Diameter of thread spool determines disc size. There must be no
gap between the disc and the spool.
⦁
push engaging lever 4 towards bobbin
►
the winder works automatically
►
the Display to wind the bobbin appears
⦁
4
5
6
7
move the round knob in the Display using the finger to the left/right or
⦁
turn the stitch width knob (see page 12)
►
the winding speed is altered
►
the motor will stop automatically when the bobbin is full
►
the Display is closed
⦁
remove bobbin and pull the thread over thread cutter 5 to cut it
Bobbin winding while sewing
⦁
attach foam pad on the vertical spool pin 6
⦁
place thread on the vertical spool pin
⦁
following the direction of the arrow, take the thread through the thread
guide 7 and
20
⦁
guide around the pre-tension stud
Then proceed as mentioned above.
It is recommended to reduce the winding speed when winding from
the vertical spool pin.
Inserting a bobbin/Threading lower thread
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Removing the bobbin from the bobbin case
⦁
press the release lever at the bobbin case (see illustration «Changing
bobbin case» on this page)
⦁
remove the bobbin case according to following description
⦁
insert the bobbin so that the thread is wound counterclockwise 1
Sewing preparation
1
2
Removing/inserting bobbin case
2
1
⦁
pull the thread from the left into the slot
⦁
pull the thread to the right under the spring 2
⦁
lead the thread beneath the thread guide and pull upwards
►
the thread is threaded in the guide
⦁
pull the thread
►
the bobbin must turn counterclockwise
Removing the bobbin case
⦁
raise the needle
⦁
turn power switch to «0» (off)
⦁
open bobbin cover 1
⦁
press bobbin case release 2
⦁
remove the bobbin case
Inserting the bobbin case
⦁
3
4
4
hold the bobbin case with the thread guide 3 pointing upwards
⦁
put the thread guide into the notch 4 of the hook race cover
⦁
insert the bobbin case and press in the center until it clicks into place
Bobbin thread cutter
⦁
pull the thread over thread cutter 5 to cut it
⦁
close the cover
5
21
Sewing preparation
034247.71.04_2014-02_Manual_B750_EN
Threading the upper thread
1
2
⦁
raise the needle and presser foot
⦁
turn power switch to «0» (off)
⦁
place foam pad on the spool pin
⦁
place spool on pin so that the thread unwinds clockwise
⦁
attach appropriate spool disc
⦁
hold the thread and lead it from the spool along the direction of the arrow
into the rear guide 1
⦁
then into slit of upper thread tension 2
4
3
Changing the needle
⦁
pull thread down to the right of the take-up cover and around 3
⦁
take thread up to the left of the cover and around 4, placing it in the take-up
lever
⦁
take thread down and through guides 5 and 6
⦁
thread the needle (see page 24)
Appropriate spool disc
Diameter of thread spool determines disc size. There must be no
gap between the disc and the spool.
5
6
Removing the needle
⦁
raise the needle
⦁
remove or lower presser foot (see page 24, 30)
⦁
turn power switch to «0» (off)
⦁
loosen the needle clamp screw 1 using the gray screwdriver
⦁
pull the needle down to remove
22
1
Inserting the needle
⦁
flat side of needle to the back
⦁
insert the needle as far as it will go
⦁
tighten needle clamp 1 using the gray screwdriver
Threading the double needle
034247.71.04_2014-02_Manual_B750_EN
2
1
3
5
Threading the first thread
4
⦁
raise the needle and the presser foot, remove the presser foot if necessary
⦁
turn power switch to «0» (off)
⦁
insert double needle
⦁
place foam pad on the spool pin
⦁
place thread spool 3 on horizontal spool pin
⦁
attach appropriate spool disc
⦁
take thread through rear guide 2
⦁
guide the thread to the front in the slit and past the tension disc 1 on the
right side
⦁
guide the thread to the needle as usual and
⦁
thread the right needle manually
Threading the second thread
⦁
place foam pad on vertical spool pin
⦁
place the second thread spool 4 on the vertical spool pin
⦁
take thread through rear guide 2
⦁
guide the thread to the front in the slit and past the tension disc 1 on the
left side
⦁
guide the thread to the needle as usual and
⦁
thread the left needle manually
Threads 5 must not be twisted together.
Sewing preparation
Threading the triple needle
3
2
1
When using the vertical spool pin, always add a foam pad. This
prevents the thread from twisting around the spool pin.
Two thread spools and one full bobbin are needed.
⦁
insert triple needle
⦁
4
place one thread spool 1 on horizontal spool pin
⦁
place second thread spool 3 and the bobbin 2, separated by a spool disc,
on vertical spool pin (both spools must to turn in the same direction)
⦁
thread as usual and
⦁
guide two threads on the left side of the tension disc 4 and one thread
past the right side
⦁
guide threads to the needle as usual
⦁
and thread every needle manually
By using the Guide eyelet for metallic and silk thread (optional
accessory) the thread release from the stacked spool/bobbin can be
enhanced.
23
Sewing preparation
034247.71.04_2014-02_Manual_B750_EN
Thread needle
1
2
1
Position the needle by pressing the foot control once (1 stitch).
⦁
raise the needle
⦁
lower the presser foot
⦁
turn power switch to «0» (off)
⦁
hold thread to the left and back
3
⦁
press lever 1 down and hold it
⦁
guide thread around the hook 2 to the right in front of the needle
⦁
put the thread from the front into the guide 3 until it catches in the wire hook
⦁
4
release lever 1 and thread
►
needle is threaded
⦁
pull the thread to the back and
⦁
put the thread under the foot and pull it from back to front over the thread
cutter on left side of the head frame 4, cut
Threads release automatically as soon as the first stitch is sewn.
Changing the presser foot
1
1
Removing the presser foot
⦁
raise the needle and presser foot
⦁
turn power switch to «0» (off)
⦁
raise the clamping lever 1
⦁
remove the presser foot
Attaching the presser foot
⦁
guide the presser foot upwards over the cone
⦁
press the clamping lever 1 down
24
Stitch plate
034247.71.04_2014-02_Manual_B750_EN
3
4
Markings on the stitch plate
1
the stitch plate is marked with vertical, horizontal and diagonal lines in mm
and inches
the lines help to guide the fabric for sewing seams and precise topstitching,
etc.
2
the horizontal markings are helpful for sewing corners and buttonholes, etc.
the diagonal markings are useful for quilting
needle insertion point is position «0» (center needle position)
the vertical measurements correspond to the distance between the needle
and the line
measurements are marked to the right and to the left of center needle
position
Removing the stitch plate
⦁
press «Feed dog»-button 5
►
the feed dog is lowered
⦁
turn power switch to «0» (off)
⦁
remove presser foot and needle
⦁
press the stitch plate down at the right back corner 1 until it flips up
⦁
remove the stitch plate
Sewing preparation
5
Replacing the stitch plate
⦁
place the openings of the stitch plate 2, 3 and 4 above the corresponding
guide pins
⦁
press down until it clicks into place
⦁
press «Feed dog»-button
►
the feed dog is raised as soon as the first stitch is sewn
25
Sewing preparation
034247.71.04_2014-02_Manual_B750_EN
Thread tension
Higher upper thread tension = the upper thread is tightened, which
pulls the lower thread up to the top of the fabric.
Lower upper thread tension = the upper thread is loosened, which
enables it to be pulled to the back of the fabric.
Basic settings are applied automatically when a stitch pattern or program is
selected.
The upper thread tension is set optimally at the BERNINA factory and
the sewing computer has been tested. Metrosene-/Seralon thread size
100/2 (Company Mettler, Switzerland) is used for upper and lower
thread.
In case of using other types of sewing or embroidery threads, the optimal
tension may vary. Therefore it may be necessary to adjust the upper thread
tension according to the fabric and the desired stitch pattern.
Altering the upper thread tension
⦁
touch «i»-icon
⦁
touch «Upper thread tension»-icon
►
the optimal stitch formation (stitch formation in the fabric) is visible
►
the white bar within the scale and the number in the icon show the basic
setting
⦁
touch arrow icon up/down or
⦁
turn stitch width or stitch length knob to the left or to the right or
⦁
move the round knob in the Display using the finger
►
upper thread tension is tightened or loosened
►
the alteration of the upper thread tension is visible within the scale (yellow)
and in the yellow-framed icon
►
basic setting remains visible (white)
►
the alteration of the upper thread tension only affects the selected stitch
Saving the upper thread tension
⦁
touch «Back»-icon
►
the setting is saved and the Display closes
Reset settings
⦁
touch the yellow-framed icon
►
basic setting is reset
⦁
switch off the sewing computer
►
any alterations are deleted
26
Altering presser foot pressure
034247.71.04_2014-02_Manual_B750_EN
Sewing preparation
⦁
touch «i»-icon
⦁
touch «presser foot pressure»-icon
►
presser foot pressure scale is displayed
⦁
turn stitch width or stitch length knob to the left or to the right
►
presser foot pressure is increased or decreased
►
alterations of the presser foot pressure is displayed in the scale (yellow)
and in the yellow-framed icon
►
the basic setting remains visible (white)
When sewing thick material, e.g. quilting
⦁
turn stitch width or stitch length knob to the left
►
the presser foot pressure decreases to minus
The presser foot is slightly lifted and the material can be moved more simply.
Saving presser foot pressure
⦁
touch «Back»-icon
►
the settings are saved and the display closes
Reset settings
⦁
touch the yellow-framed icon
►
basic setting is reset
Reset the presser foot pressure to basic setting after finishing the
task.
27
Sewing preparation
034247.71.04_2014-02_Manual_B750_EN
Feed Dog and Fabric Feed
With each stitch the feed dog moves forward by one step. The length of this
step is determined by the stitch length selected.
With an extremely short stitch length, the steps are also very short. The fabric
moves away from the foot quite slowly, even at full sewing speed. e.g.
buttonholes, satin stitch and decorative stitches are all sewn with a very short
stitch length.
Let the fabric feed evenly.
ATTENTION!
Pulling, pushing or holding back the fabric can result in
damages of the needle and stitch plate.
Feed Dog lowered/ready to sew
1
Pulling, pushing or holding back the fabric will result in uneven stitches.
«Feed dog»-button 1 flush with housing.
►
feed dog is ready to sew
«Feed dog»-button 1 pressed.
►
feed dog is lowered
For free-motion sewing (darning, embroidery, quilting, etc.).
28
Notes
034247.71.04_2014-02_Manual_B750_EN
Notes
29
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